第 50 卷第 1 期Vol. 50 No. 1
2020 年 2 月Feb 2020

所属栏目:农药及中间体

高品质噻虫嗪的绿色合成研究
程 超1,2,杜升华1,2,兰世林1,2,苏胜男3,刘双谨3 (1. 湖南化工研究院有限公司,国家农药创制工程技术研究中心,湖南 长沙 410014;2. 农用化学品湖南省重点实验室,湖南 长沙 410014;3. 湖南海利常德农药化工有限公司,湖南 常德 415001)
摘 要:以3-甲基-4-硝基亚胺基全氢化-1,3,5-噁二嗪和2-氯-5-氯甲基噻唑为原料,碳酸钾为缚酸剂,臭氧为脱色剂,一锅法制得白色噻虫嗪结晶,收率92.0%(以2-氯-5-氯甲基噻唑计),含量99.2%。此方法具有实验操作简便、产品收率及含量较高、三废量少等优点,符合绿色化工和清洁生产的要求,适合工业化生产。
关键词:新烟碱杀虫剂;2-氯-5-氯甲基噻唑;噻虫嗪;一锅法
中图分类号:S482.3  文献标识码:A  文章编号:1009-9212(2020)01-0019-04
Study on the Green Synthesis of High Quality Thiamethoxam
CHENG Chao1,2, DU Sheng-hua1,2, LAN Shi-lin1,2, SU Sheng-nan3, LIU Shuang-jin3 (1. Hunan Research Institute of Chemical Industry Co., Ltd., National Engineering Research Center for Agrochemicals, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China; 3. Hunan Haili Changde Pesticide & Chemicals Co.,Ltd., Changde 415001, China)
Abstract:In a one-pot synthetic process, 1,5-dimethyl-2-nitroimino-perhydrogenated-1,3,5-triazine and 2-chloro-5-chloromethyl thiazole were used as the raw materials, potassium carbonate as acid binding agent and ozone as decolorant the white thiamethoxam was obtained with a yield of 92.0% and a purity of 99.2%. This method was suitable for green chemical industry and industrial production with many advantages including simple operation, high yield and content of the product, and less wastes disposed.
Key words:neonicotinoid insecticide; 2-chloro-5-chloromethyl thiazole; thiamethoxam; one-pot synthetic process
作者简介:程 超(1987-),男,安徽黄山人,助理研究员,硕士,研究方向:农药及精细化学品的合成与开发(E-mail:253222581@qq.com)。
收稿日期:2020-01-28